diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index a41ead5485..b80d7c606f 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -3771,6 +3771,7 @@ pub const SIG = if (is_mips) enum(u32) {
     PROF = 29,
     XCPU = 30,
     XFZ = 31,
+    _,
 } else if (is_sparc) enum(u32) {
     pub const BLOCK = 1;
     pub const UNBLOCK = 2;
@@ -3816,6 +3817,7 @@ pub const SIG = if (is_mips) enum(u32) {
     LOST = 29,
     USR1 = 30,
     USR2 = 31,
+    _,
 } else enum(u32) {
     pub const BLOCK = 0;
     pub const UNBLOCK = 1;
@@ -3859,6 +3861,7 @@ pub const SIG = if (is_mips) enum(u32) {
     IO = 29,
     PWR = 30,
     SYS = 31,
+    _,
 };
 
 pub const kernel_rwf = u32;